Abstract:At present, the rapid development of science and technology and artificial intelligence provides effective methods and means for automatic separation of tobacco leaves and automatic detection and analysis of tobacco quality.?At present, the separation and classification of tobacco leaves are still carried out in the traditional manual way, which makes the classification results highly subjective and leads to a series of problems such as lack of scientific and objective classification. so this paper put forward the research of automatic separation of tobacco leaves and intelligent classification sorting system.The system in the design of industrial computer as the core, the use of Visual Basic programming language programming software, the application of expert system structure for intelligent control, DCS distributed control system, monitoring the operation of each section.The process of tobacco leaf automatic separation, intelligent detection and grading, intelligent sorting and the working principle of each section of the system were described in detail.The results of simulation experiment show that the system runs smoothly in each section, the separation effect is obvious, the accuracy of classification results is high, and the effective separation, classification and sorting of tobacco leaves can be realized.